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Old 01-22-2023, 07:20 PM
swazi_matt swazi_matt is offline
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Join Date: May 2010
Location: From Swaziland, Now Hamilton New Zealand the “look but don’t touch” enduro heaven
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I would say possibly water pump impellor rubbing on the housing or is it the exhaust o-rings worn out?

A good way to locate it is to use a long screwdriver as a doctors stethoscope, put one end against your ear and move the other around the engine to locate the source of the sound
https://www.youtube.com/watch?v=U927cYhQXB4
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